General

For applications with only little differential pressure, Bronkhorst
High-Tech developed the LOW-ΔP-FLOW series mass flow meters and controllers.
In these instruments, the flow resistance is minimized by a different sensor
and by-pass construction.

lowest range 0,2 ... 10 mln/min
highest range 20 ... 1000 m3n/h

The control of mass flow with small pressure difference comprises the
LOW-ΔP-FLOW Mass Flow Controller in compact construction; control valve
and flow meter are integrated in one body. The maximum flow in these compact
models is 1...50 ln/min Air, depending on the operating conditions.
For the control of higher flow rates at very low differential pressures
Bronkhorst has devised special control valves with pressure compensation
bellows (types F-004AC/F-004AI/F-004BI). These control valves are piped
on to the flow meter while the electronic PI-control function is an integral
part of the flow meter.

"Multibus" Digital Mass Flow Meters/Controllers

Bronkhorst developed their digital instruments according to the flexible
"multibus" concept, due to which the instruments can be equipped with on-board
interface board with DeviceNet™, PROFIBUS DP, PROFINET, Modbus RTU/ASCII or
FLOW-BUS protocol. More
information about digital "multibus" communication.